BE784559A - PROCESS FOR PREPARING LACTAMS - Google Patents

PROCESS FOR PREPARING LACTAMS

Info

Publication number
BE784559A
BE784559A BE784559A BE784559A BE784559A BE 784559 A BE784559 A BE 784559A BE 784559 A BE784559 A BE 784559A BE 784559 A BE784559 A BE 784559A BE 784559 A BE784559 A BE 784559A
Authority
BE
Belgium
Prior art keywords
preparing lactams
lactams
preparing
Prior art date
Application number
BE784559A
Other languages
French (fr)
Original Assignee
Zieren Chemiebau Gmbh Dr A
Zieren G M B H & Co K G
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zieren Chemiebau Gmbh Dr A, Zieren G M B H & Co K G filed Critical Zieren Chemiebau Gmbh Dr A
Publication of BE784559A publication Critical patent/BE784559A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
    • C07D201/16—Separation or purification
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/48—Sulfur dioxide; Sulfurous acid
    • C01B17/50—Preparation of sulfur dioxide
    • C01B17/501—Preparation of sulfur dioxide by reduction of sulfur compounds
    • C01B17/504—Preparation of sulfur dioxide by reduction of sulfur compounds of ammonium sulfates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/24—Sulfates of ammonium
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Cephalosporin Compounds (AREA)
  • Hydrogenated Pyridines (AREA)
BE784559A 1971-06-18 1972-06-08 PROCESS FOR PREPARING LACTAMS BE784559A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712130036 DE2130036B2 (en) 1971-06-18 1971-06-18 METHOD FOR PRODUCING LACTAMEN

Publications (1)

Publication Number Publication Date
BE784559A true BE784559A (en) 1972-10-02

Family

ID=5810994

Family Applications (1)

Application Number Title Priority Date Filing Date
BE784559A BE784559A (en) 1971-06-18 1972-06-08 PROCESS FOR PREPARING LACTAMS

Country Status (11)

Country Link
US (1) US4054562A (en)
JP (1) JPS4917276B1 (en)
AT (1) AT318642B (en)
BE (1) BE784559A (en)
CH (1) CH591442A5 (en)
DE (1) DE2130036B2 (en)
ES (1) ES404007A1 (en)
FR (1) FR2141794B1 (en)
GB (1) GB1379126A (en)
IT (1) IT956409B (en)
NL (1) NL7207713A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7601061A (en) * 1976-02-03 1977-08-05 Stamicarbon PROCEDURE FOR GENERATING EPSILON CAPROLAC TAM FROM AN EPSILON CAPROLACTAM SULFURIC ACID REACTION MIXTURE.
NL7607047A (en) * 1976-06-28 1977-12-30 Stamicarbon PROCEDURE FOR GENERATING EPSILON CAPROLACTAM FROM AN EPSILON CAPROLACTAM-SULFURIC ACID REACTION MIXTURE.
NL7700882A (en) * 1977-01-28 1978-08-01 Stamicarbon PROCEDURE FOR GENERATING EPSILON CAPROLAC TAM FROM AN EPSILON CAPROLACTAM SULFUR ACID REACTION MIXTURE.
DE2845019A1 (en) * 1978-10-16 1980-04-30 Basf Ag METHOD FOR THE CONTINUOUS PRODUCTION OF EPSILON-CAPROLACTAM BY BECKMANN'S TRANSFER
IL64712A (en) * 1982-01-05 1984-07-31 Fertilizer Dev Sa Process for recovering sulfuric acid and ammonia from diammonium sulfate
GB8610856D0 (en) * 1986-05-02 1986-06-11 Boc Group Plc Treatment of waste material
US5498790A (en) * 1993-06-09 1996-03-12 Novus International, Inc. Regeneration of sulfuric acid from sulfate by-products of 2-hydroxy-4-(methylthio)butyric acid manufacture
US6469163B1 (en) * 1998-12-24 2002-10-22 Praxair Technology Inc. Method for production of hydroxylamine sulfate in the conventional process for the synthesis of caprolactam
US7022844B2 (en) 2002-09-21 2006-04-04 Honeywell International Inc. Amide-based compounds, production, recovery, purification and uses thereof
CN107438594B (en) 2015-04-02 2020-11-06 安西娅芳香剂私人有限公司 Effective process for synthesizing cyclic amide

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2221369A (en) * 1940-11-12 Process foe producing lactams
US3133055A (en) * 1964-05-12 Production ofcaprolactam
NL282684A (en) * 1961-08-30 1900-01-01
DE1199243B (en) * 1963-07-10 1965-08-26 Huels Chemische Werke Ag Process for the production of gases containing sulfur dioxide from waste sulfuric acid containing ammonium salts
NL136780C (en) * 1963-10-31
GB1084096A (en) * 1963-12-03 1900-01-01
DE1229995B (en) * 1964-01-17 1966-12-08 Chemiebau Dr A Zieren Ges Mit Process for the production of ammonia and sulfur dioxide
NL135679C (en) * 1968-11-12 1900-01-01
GB1367241A (en) * 1971-02-19 1974-09-18 Zieren Chemiebau Gmbh Dr A Process for the combustion of ammonium sulphate
DE2110036C3 (en) * 1971-03-03 1975-10-02 Davy Powergas Gmbh, 5000 Koeln Process for splitting ammonium sulphate
NL164028C (en) * 1971-05-07 1980-11-17 Stamicarbon METHOD FOR SEPARATING LACTAMS
CA989830A (en) * 1971-05-07 1976-05-25 Abraham H. De Rooij Process for preparing and recovering lactams

Also Published As

Publication number Publication date
IT956409B (en) 1973-10-10
AT318642B (en) 1974-11-11
CH591442A5 (en) 1977-09-15
NL7207713A (en) 1972-12-20
FR2141794A1 (en) 1973-01-26
JPS4917276B1 (en) 1974-04-27
DE2130036A1 (en) 1973-01-04
GB1379126A (en) 1975-01-02
DE2130036B2 (en) 1977-02-10
ES404007A1 (en) 1975-06-01
FR2141794B1 (en) 1977-12-23
US4054562A (en) 1977-10-18

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